Subtraction is the easiest way to count days between two dates in Excel. You can use the arithmetic operator – (minus sign) to subtract one date from another to find the number of days between them.

An Excel spreadsheet can become an indispensable tool for your business when you harness its power for keeping records and doing computations. Take advantage of the program's seemingly limitless ...

You already knew that Excel can do straight date math, but it can also take into account holidays to find the number of working days between two dates. Tech blogger Chandoo points out the =networkdays ...